Question 1

Which of the following best describes the difference between a saturated and an unsaturated hydrocarbon?

Accepted Answer

A saturated hydrocarbon contains only single bonds between carbon atoms, while an unsaturated hydrocarbon contains at least one double or triple bond.

Question 2

Which of the following is the correct IUPAC name for the compound with the condensed formula $$\mathrm{CH_3CH_2CH_2CH_3}$$?

Accepted Answer

Butane

Question 3

Which of the following structures represents a cycloalkane?

Accepted Answer

A six-carbon ring with all single bonds: $$\mathrm{C_6H_{12}}$$

Question 4

Which of the following is a correct example of a structural (constitutional) isomer?

Accepted Answer

Butane ($$\mathrm{CH_3CH_2CH_2CH_3}) $$and 2-methylpropane ($$\mathrm{(CH_3$)_3CH})$$

Question 5

Which of the following functional groups is present in the compound with the structure $$\mathrm{CH_3COOH}$$?

Accepted Answer

Carboxylic acid

Question 6

A reaction has a negative $$\Delta G$$ and a negative $$\Delta H. $$Which of the following statements is true?

Accepted Answer

The reaction is exergonic and exothermic, and is likely to be spontaneous.

Question 7

Which of the following changes will increase the rate of a chemical reaction?

Accepted Answer

Increasing the temperature

Question 8

Which of the following is the balanced equation for the complete combustion of propane ($$\mathrm{C_3H_8}$$)?

Accepted Answer

$$\mathrm{C_3H_8 + 5O_2 \rightarrow 3CO_2 + 4H_2O}$$

Question 9

Which of the following best describes a redox reaction in organic chemistry?

Accepted Answer

A reaction in which the oxidation state of carbon increases or decreases, often by addition or removal of oxygen or hydrogen.

Question 10

Which of the following is the correct product of the condensation reaction between acetic acid ($$\mathrm{CH_3COOH}) $$and ethanol ($$\mathrm{CH_3CH_2OH}$$)?

Accepted Answer

Ethyl acetate ($$\mathrm{CH_3COOCH_2CH_3}) $$and water ($$\mathrm{H_2O})$$

Question 11

According to Markovnikov’s Rule, when water is added to propene ($$\mathrm{CH_2$=$$CHCH_3$$}) in a $$hydration reaction, where does the $$\mathrm{OH}$$ group attach?

Accepted Answer

To the carbon with the fewest hydrogen atoms already attached

Question 12

Which of the following best describes a monosaccharide?

Accepted Answer

A carbohydrate containing a single sugar unit

Question 13

Which of the following is a reducing sugar?

Accepted Answer

Glucose

Question 14

Which of the following best describes an epimer?

Accepted Answer

Two sugars that differ in configuration at only one chiral carbon

Question 15

Which of the following statements about blood types is correct?

Accepted Answer

Type O blood is the universal donor because it lacks A and B antigens.

Question 16

Which of the following best describes a chiral carbon?

Accepted Answer

A carbon atom bonded to four different groups

Question 17

Which of the following is the correct classification for a sugar with the structure $$\mathrm{CH_2OH(CHOH)_3COCH_2OH}$$?

Accepted Answer

Ketopentose

Question 18

Which of the following statements about chemical equilibrium is correct?

Accepted Answer

At equilibrium, the rates of the forward and reverse reactions are equal.

Question 19

Which of the following is a correct example of a double displacement (double exchange) reaction?

Accepted Answer

$$\mathrm{$$AgNO_3$$ + NaCl \rightarrow AgCl + $$NaNO_3$$}$$

Question 20

A patient is prescribed a diet of 60 g carbohydrates, 50 g protein, and 30 g fat per day. What is the total caloric intake from these macronutrients?

Accepted Answer

$$60 	imes 4 + 50 	imes 4 + 30 	imes 9 = 240 + 200 + 270 = 710$$ Cal

CHM1032 Exam 2 Study Guide: Organic Chemistry, Thermochemistry, and Carbohydrates

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